Lewicidal

And now what? Complete the Campaign

Tug at My Iron Heart Strings You won a player match in Online Mode.

For the Night is Dark Endurance Co-op Challenge: Clear 3 Enemy Camps at night in a single expedition

Conservation Extract all wild animal species.

I Felt Your Presence Witness the cult's meeting

Campaign Gold Obtain all 108 medals on the original Arkham City campaigns (as Batman)

Fustercluck Off Complete all side missions and crew challenges in Krieg's Mind.
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Teamwork Endurance Co-op Challenge: Warm up from freezing by standing next to a campfire lit by your partner

Searcher Collect all Ansem Reports in Jiminy's Journal.

Communication Skills Endurance Co-op Challenge: Kill 5 enemies that have been marked by your partner

Stunt Flyer Fly an airplane close to the ground for 30 seconds.

Pacifist Clear the "Intel Operative Rescue" Side Op without killing a single enemy

True Friendship You pulled off 3 Tag Crashes.

Judge me by my size, do you? Reach Rank 25

Perfect Knight - Day 2 Complete every challenge in Arkham City - Main Story, Side Missions, Upgrades, Collectables, New Game Plus and Riddler's Revenge (as Batman)

Trick Arrow Skills Shoot a Lizard with a Special Arrow

Eregion Reforged Build all the Forge Towers in Udun.

Let ‘er Rip 100 targets killed using either an MMG or an MGL

Environmentalist Kill 3 targets or more using an explosive object in any level

Ye Who Enter Open the gates to Vaulthalla.

Aggro-er You took the Aggro for 100 Flank kills

No Return Complete 'Ring of Steel' on Veteran difficulty. (Solo only)

Alone Time Endurance Co-op Challenge: Spend at least one day more than 60 meters apart

Demonslayer Defeat 1,000 demons in single-player mode.

"Teamwork" Endurance Co-op Challenge: Collect an Artifact while your partner is down

Get Away from Her! Endurance Co-op Challenge: Kill an enemy melee attacking your partner

"When It Rains, It Pours" Complete 'Eviction' on Veteran difficulty. (Solo only)

A Trusted Ally Complete 49 faction missions.

Platinum Congratulations!

Fearless Complete 'Relentless' on Veteran difficulty. (Solo only)

I’d cover my ears if I were you. Fire a Bazooka 100 times.

No One Left Behind Endurance Co-op Challenge: Revive a player 3 times in a single expedition

A Reunion with Hanzo Completed "Yokai Country."

Three times it drops! Complete all Story Mode Levels in Skull 3 Hub.

Speedster Defeat the World of Chaos in the End of the World within 15 hours.

Super-Speed Fists You cleared Offline Mode Time Attack within 20 minutes.

The Best of Friends You pulled off 3 partner-specific Tag Throws.

Combo Master Perform a x10 Co-op Combo

Master of the Tag Combo You pulled off 10 Tag Combos.

Queen Anne’s Revenge Playing as Blackbeard, perform an acrobatic kill and a gun kill in less than 10 seconds.

Professor Collect all Character entries in Jiminy's Journal.

Shield of the Chosen King Completed the trials on Normal.

Avoid Flying Heads You escaped from Alisa's Spam Bomb move.

You betrayed Shiva! Complete all Story Mode Levels in Temple of Doom Hub.

Hardened War Hero Complete the game on Hardened or Veteran difficulty. (Solo only)

Dapper Capper Collect 10 hats.

Blood Sport Perform 100 melee kills

Medic!  Revive your Co-Op partner 10 times.

Destroyer Complete 1000 sabotages.

Duke or Dimwit? Defeated all waves in Duke and Dimwit Theater.